Screw driver



T. I. FEGLEY AND W. S. SNYDER. SCREW DRIVER.

. APPLICATION FILED MAY 25, 1920. 1,424,456.

Patented Aug. 1, 1922.

turning on the said section.

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FQATE T THOMAS J. FEGLEY: AND WALTER S. SNYDER, 0}! PHILADELPHIA, PENNSYLVANIA, ASSEGNORS TO NORTH BBOS. MFG. 00., ,OF PHILADELPHIA, PENNSYLVANIA, A

CORPORATION OF PENNSYLVANIA.

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Specification of Letters Patent.

Patented Aug.fi, 1922.

Application fiIed May 25 1920. eel-n1 No. 384,074.,

To all whom it may concern Be it known that we, Tnonas J. FEGLEY and \VALTER S. SNYDER, citizens of the United States, residing in Philadelphia, Pennsylvania, have invented certain Tmproveinents in Screw Drivers, of which the following is a specification.

The object of this invention is to nnprove to the handle;

Fig. 4 is a detached perspective view of the locking plate; and i I Fig. 5 is a perspective view of the spindle.

1 is the cylindrical section of the screw driver having two internal spiral grooves in the present instance, adapted to the grooves is a threaded sleeve 5, loosely mounted onthe spindle 4, which extends through a ferrule 6 and into the cylindrical section 1. 2 is a wooden handle driven onto the cylindrical section 1, said section being provided with ribs 3, which cut intov the wood of the handle and prevent the handle from At the upper end of the cylindrical section is a locking plate 7 having projections 8 which extend into notches 9 in the end of the cylindrical section and the extreme end of the section is turned down over the plate to secure the plate rigidly to the section, as shown in Fig. 2. The upper end of the spindle 4 has a flattened portion 10 which is arranged to enter a slot 11 in the plate 7 so as to lock the spindle to the plate and to the cylindrical section 1. The sleeve 5 is located between two pins 12 and 13 and has a notch 14 in its outer end so as to engage the pin 12. The pins are so spaced as to allow the nut to be disengaged from the pin 12.

locking plate 7 and a washer 16, resting on the pin 13. By this construction, we provide a very simple push screw driver and when the spindle is in engagement with the locking plate 7 it is rigidly connected with the cylindrical section of the screw driver.

The operation is as follows: When the spring is used the spindle is normally in a projected position, the sleeve 5 being at the outer end of the cylindrical section 1 and may be free of the spindle 4. As soon as pressure is applied to the handle 2, the sleeve 5 is forced into engagement with the pin 12 on the spindle and will turn the spindle positively. When the handle is in engagement with the head of a screw, it will turn the screw, but when the handle is pushed to the limit, it will engage the end of-the spindlepositively, freeing the sleeve 5. The device can then be used as an ordinary screw driver. When the spindle is free of the screw being driven, it will be projected by the spring and will detach itself from the sleeve. The sleeve will turn freely, being to the spiral groove in the cylindrical sec tion. I

2. The combination of a cylindrical section notched at one end and having a spiral groove therein; a locking plate having projections adapted to the notches in the said section; and also having a slot; aspindle; and a sleeve on the spindle adapted to an internal groove in the cylindrical section, the end of the spindle being reduced to fit the slot in the locking plate when the spindle is at the extreme end of its movement.

3. The combination in a screw driver, of a cylindrical section having an internal spiral groove; a ferrule screwed into one end of the section, the other end of the section being notched; a slotted locking plate having projections adapted to the notches in the cylindrical section; a handle driven onto the 5 end of the cylindrical section; a spindlehaxvin spin; a sleeve loosely mounted on the I SPlllCllGftllCl-l1LVl11g threads adapted to the groove in the cylindrical section and notched at its outer end to engage the pin on the spindle a second pin on the spindle beyond 10 the nut; a washer; and a spring'betweenthe Washer and the locking plate. 1

' THOMAS J. FEGLEY.

WALTER S. SNYDER. 

